Name: Easy Low Carb Chicken Casserole
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Yield: 6 servings
Cuisine: American
Ingredients: 3 cups cooked chicken breast, diced or shredded; 1 cup broccoli florets (fresh or frozen, chopped small); 1 cup cauliflower florets (fresh or frozen, chopped small); 1 cup shredded cheddar cheese; ½ cup shredded mozzarella cheese; ½ cup cream cheese, softened; ½ cup sour cream; ¼ cup heavy cream; 2 cloves garlic, minced; 1 teaspoon onion powder; ½ teaspoon paprika; ½ teaspoon salt; ¼ teaspoon black pepper; 2 tablespoons fresh parsley, chopped (for garnish); 1 tablespoon olive oil (for greasing the baking dish)

Hey y'all! Searching for a simple, comforting meal that delivers big on flavor without the carbs? You're going to love this Easy Low Carb Chicken Casserole. It's packed with tender chunks of chicken, creamy cheese, and wholesome veggies all baked together for the ultimate cozy dinner. Whether you're following a keto diet or just want something that's both hearty and healthy, this casserole is the perfect choice for busy weeknights or potlucks. Let's get cooking!

Save

Why You'll Love This

Super quick prep — ready for the oven in just 15 minutes!
Creamy, cheesy, and loaded with savory chicken flavor.
Low in carbs but completely satisfying and filling.
Perfect for meal prep and delicious as leftovers.
Versatile — easily customize with your favorite veggies and cheese.

Ingredients

3 cups cooked chicken breast, diced or shredded
1 cup broccoli florets (fresh or frozen, chopped small)
1 cup cauliflower florets (fresh or frozen, chopped small)
1 cup shredded cheddar cheese
½ cup shredded mozzarella cheese
½ cup cream cheese, softened
½ cup sour cream
¼ cup heavy cream
2 cloves garlic, minced
1 teaspoon onion powder
½ teaspoon paprika
½ teaspoon salt
¼ teaspoon black pepper
2 tablespoons fresh parsley, chopped (for garnish)
1 tablespoon olive oil (for greasing the baking dish)

Directions

Prep & Preheat

Preheat your oven to 375°F (190°C) and lightly grease a 9x13-inch baking dish with olive oil.

Mix the Base

In a large bowl, combine the cooked chicken, broccoli, cauliflower, cheddar cheese, and mozzarella cheese. Toss together to evenly distribute.

Make the Creamy Sauce

In a separate medium bowl, whisk together the cream cheese, sour cream, heavy cream, garlic, onion powder, paprika, salt, and black pepper until smooth and well combined.

Assemble the Casserole

Pour the creamy sauce over the chicken and veggie mixture. Stir until everything is thoroughly coated.
Spread the mixture evenly into the prepared baking dish.

Bake and Garnish

Bake uncovered for 22-25 minutes, or until bubbly and golden on top.
Garnish with chopped parsley before serving.

Notes

If using frozen veggies, thaw and squeeze out excess water for best texture.
Rotisserie or leftover chicken makes prep even faster.
Let the casserole rest 5-10 minutes after baking for easier serving.

Variations

Spinach & Artichoke: Replace broccoli and cauliflower with 2 cups fresh spinach and 1 cup artichoke hearts (drained and chopped).
Creamy Buffalo: Add 2 tablespoons buffalo sauce to the cream sauce and top with blue cheese crumbles.
Mushroom & Swiss: Sub cauliflower for 1 cup sliced mushrooms and use Swiss cheese instead of mozzarella.

Required Equipment

9x13-inch baking dish
Large mixing bowl
Medium mixing bowl
Whisk
Measuring cups and spoons
Oven

Storage Instructions

Let your casserole cool completely, then cover tightly or transfer to an airtight container. Store in the refrigerator for up to 4 days. To freeze, wrap well and store for up to 2 months. Reheat individual portions in the microwave or bake, covered, at 350°F (177°C) until warmed through.

Suggested Pairings & Serving Recommendations

Great with a crisp green salad or roasted asparagus on the side.
Serve over cauliflower rice for an extra boost of veggies.
A sprinkle of chopped green onions or extra cheese on top before serving adds extra flair.

Pro Tips

Dice veggies and chicken evenly for the best texture in every bite.
Don’t skip greasing your baking dish—prevents sticking and makes cleanup easy.
Let the casserole rest before slicing so the creamy sauce thickens and sets for perfect portions.

FAQ

Can I make this casserole ahead of time?

Absolutely! Assemble and refrigerate (covered) up to 24 hours in advance, then bake when ready to serve.

Is this recipe freezer-friendly?

Yes! Cool completely, wrap tightly, and freeze for up to 2 months. Thaw overnight before reheating.

What’s the best way to reheat leftovers?

Reheat individual portions in the microwave, or bake the full casserole at 350°F (177°C) until hot and bubbly.

Prep Time: 15 minutes
Cook Time: 22-25 minutes
Total Time: 37-40 minutes
Servings: 6